| Armstrong, Darren | Darren Armstrong | Actor | 1994 | 1 | |
| Armstrong, Eileen | Eileen Armstrong | Designer | 1984 | 1 | |
| Armstrong, Elisa | Elisa Armstrong | Actor | 2022 | 1 | |
| Armstrong, G. | G. Armstrong | Actor | 1894 | 1 | |
| Armstrong, Jan | Jan Armstrong | Actor | 2010 | 1 | 1 |
| Armstrong, John | John Armstrong | Actor | 1956 - 1958 | 5 | |
| Armstrong, Michael | Michael Armstrong | Actor | 2013 | 1 | 1 |
| Armstrong, Phil | Phil Armstrong | Stage Manager | 2024 | 1 | |
| Armstrong, Shane | Shane Armstrong | Actor | 2005 - 2007 | 11 | |
| Armstrong, Will Steven | Will Steven Armstrong | Costume Designer, Designer | 1960 - 1969 | 3 | |
| Armstrong, William | William Armstrong | Actor | 1917 - 1928 | 2 | 1 |
| Armytage, Harry | Harry Armytage | Lighting Designer | 2015 | 1 | |
| Arnall, Curtis, C. | Curtis C. Arnall | Actor | 1925 | 1 | |
| Arnall, Joan | Joan Arnall | Actor | 1936 - 1937 | 2 | |
| Arnall, Julianne | Julianne Arnall | Actor | 2004 | 1 | |
| Arnardóttir, Harpa | Harpa Arnardóttir | Actor | 2011 | 1 | |
| Arnarsdóttir, Erika Mist | Erika Mist Arnarsdóttir | Actor | 1998 | 1 | |
| Arnarsdóttir, Oddný | Oddný Arnarsdóttir | Actor | 1991 | 1 | |
| Arnarson, Finnur Arnar | Finnur Arnar Arnarson | Designer | 2011 | 1 | |
| Arnarson, Jón, K. | Jón K. Arnarson | Actor | 1978 | 1 | |
| Arnarsson, Thorleifur Örn | Thorleifur Örn Arnarsson | Adaptation, Director | 2010 - 2021 | 5 | |
| Arnau, Carl | Carl Arnau | Actor | 1891 - 1896 | 5 | |
| Arnaud, Beatrix | Beatrix Arnaud | Actor | 2001 | 1 | |
| Arnaud, Jean-Pierre | Jean-Pierre Arnaud | Musician | 2013 | 1 | |
| Arnaudeau, Pierre | Pierre Arnaudeau | Director | 1960 - 1963 | 2 | 1 |
| Arnaudon, Frank | Frank Arnaudon | Assistant Director | 2023 | 1 | |
| Arnautović, Faruk | Faruk Arnautović | Actor, Assistant Director | 1979 - 1983 | 3 | |
| Arnăutu, Valeriu | Valeriu Arnăutu | Actor | 1963 | 2 | |
| Arnberg, Edvard | Edvard Arnberg | Actor | 1898 - 1899 | 2 | |
| Arndt-Ober, Margarete | Margarete Arndt-Ober | Actor | 1938 | 1 | |
| Arndt, Adeline | Adeline Arndt | Actor | 1936 | 1 | |
| Arndt, Ali | Ali Arndt | Actor | 1950 | 1 | |
| Arndt, Christiane | Christiane Arndt | Actor | 1992 | 1 | |
| Arndt, Christina | Christina Arndt | Actor | 2018 | 1 | |
| Arndt, Claudia | Claudia Arndt | Actor | 1984 | 1 | |
| Arndt, Elly | Elly Arndt | Actor | 1896 | 1 | |
| Arndt, Ernst | Ernst Arndt | Actor | 1912 - 1932 | 8 | |
| Arndt, Fr. | Fr. Arndt | Actor | 1897 | 1 | |
| Arndt, Franziska | Franziska Arndt | Actor | 2009 | 1 | 4 |
| Arndt, Fritz | Fritz Arndt | Actor | 1913 - 1914 | 2 | |
| Arndt, Gerd-Manfred | Gerd-Manfred Arndt | Actor | 1992 | 1 | |
| Arndt, Hubert | Hubert Arndt | Actor | 1992 | 1 | |
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